It is processed at a low temperature
For this reason
As impressive as they are
Controls temperature (heating & cooling)
where the arrangements are in no or little water
14x18x1 MERV 13 AC Furnace Filters 6 Pack Amendment It is processed at aNordic Pure MERV 13 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200